Fangrui Product Details 1. N16 1.28 Inch Color Screen Smart Watch,support Heart Rate Monitoringblood Pressure Monitoring 2. Battery Capacity: 300mah 3. Touch: Full Touch 4. Bluetooth Version : Bluetooth 4.2 5. Resolution:240*240 6. Charging Method:usb Charging 7. Life Time:5-7 Days Of Use, 20 Days Of Standby 8. Charging Time: About 100 Minutes 9. System: Android System 5.1 Version Or Above,ios System 8.0 Version Or Above 10. Firmware Language: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian, Portuguese 11. App Languages: Chinese, Traditional Chinese, English, Korean, German, Spanish, Japanese, French, Italian, Russian, Portuguese, Arabic, Ukrainian 12. Function: 13. Bluetooth Call,heart Rate Monitoring,blood Pressure Monitoring,blood Oxygen Monitoring 14. Step,distance,calorie 15. Sleep Monitoring (sleep Duration, Sleep Quality) 16. Social App Message Reminder:gmail,cnn App,zaker,line,facebook, Instugrate,facebook Message,qq,message,wechat 17. Multi-sport Modes, Scientific Analysis To Manage Your Health 18. Bluetooth Dual Headset Calling, Weather, Local Mp3 Playback 19. Daily Alarm Clock, Photo Control, Sedentary Reminder, Find Phone, Find Bracelet Crafted With Attention To Detail